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Advances in Civil Engineering
Volume 2012 (2012), Article ID 538274, 8 pages
Research Article

Liquefaction Mitigation Using Lateral Confinement Technique

Department of Structural Engineering, Tanta University, Tanta, Egypt

Received 22 July 2011; Revised 9 September 2011; Accepted 13 September 2011

Academic Editor: E. J. Sapountzakis

Copyright © 2012 W. R. Azzam and A. K. Nazir. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The exploration of a series of shaking tests on circular model footing with and without cellular confinement constructed around the footing with variable depths and diameters under the effect of variable net bearing stress is studied. The effect of the confinement on the liquefaction time, final settlement, excess pore water pressure, and induced building acceleration were studied. The consequences showed that installing the cell with minimum diameter closer to footing and sufficient penetration depth significantly delayed the liquefaction time. It can be considered as an alternative technique to decrease both the lateral spreading and the final settlement below the foundation during the shaking. The results demonstrated that the cell reduced the excess pore water pressure within the confined zone and the pore water pressure migration outside the confined block where the liquefaction is induced. Moreover, the peak foundation acceleration of the confined footing soil system is reduced compared with the case of without cell confinement.